A compact ECR ion source using a 2.45 GHz solid-state microwave generator for generating carbon ion beam

Prof. Hiroyuki Kitagaawa1

1Institute for Space-Earth Environment Research, Nagoya, Japan

At the Institute of Space-Earth Environmental Research, Nagoya University, A compact electron cyclotron resonance (ECR) ion source using a 2.45 GHz solid-state microwave generator for generating carbon ion beam has been developed on a trial basis. The plasma chamber volume is about 40 ml, and the 2.45 GHz microwave is introduced to the plasma chamber from a solid-state microwave generator with a maximum output of 200 W through small antennas with coaxial cables giving transverse-electromagnetic mode of transmission. The compact ECR is installed to a beam injection system; an Einzel lens, XY steer and injection faraday cup, 90◦ dipole magnet, which were made by modifying a part of the HVEE 14C AMS and General Ionex AMS system. A series of experiments and simulations for optimization of carbon isotope measurement will be discussed toward the practical use of stable carbon isotope and radiocarbon analyses.


Biography:

Dr. Hiroyuki Kitagawa is a representative of the accelerator AMS facility in the Institute for Space-Earth Environmental Research, Nagoya University. Prior to this, I am a Professor at the Graduate School of Environmental Studies, Nagoya University from 2008 to 2016. My current research interests lie in the areas of paleo-environment in Asia, the relationship between environmental and human history, mass spectrometry analysis (AMS, IRMS, ICPMS), and quaternary chronology. Now I am having a hard time managing and operating AMS that I have used for a long time.

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